had the seat off and when I went to put it back on it would not lock in place. Pulled the taillight out to see what was going on. The seat seems to be all the way forward and the side hooks are in place,but the bar at the back is not going in.The latch is working ok when I checked it with a screwdriver. Tried my other seat same thing and nothing seems bent. This is driving me crazy as it is probably something simple that I am overlooking. Any ideas on what might be happening?